PT-2026-42498 · Openises+1 · Tickets

CVE-2026-48220 · Published 2026-05-21 · Updated 2026-05-21

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Open ISES Tickets versions prior to 3.44.2

Description Authenticated attackers can perform a reflected cross-site scripting attack via the 'ics205.php' endpoint. The issue occurs when an unsanitized value is passed through the frm add str POST parameter and inserted directly into an HTML form hidden input value attribute. This allows the execution of arbitrary JavaScript in the victim's browser when the response is rendered.

Recommendations Update to version 3.44.2 or later. Avoid using the frm add str parameter in the 'ics205.php' endpoint until the update is applied.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-48220

Affected Products

Tickets

References · 6

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48220.json · Exploit
• https://github.com/openises/tickets/commit/ecfeb406a016766cae81c749e14b5145a9f2dbff · Patch
• https://osv.dev/vulnerability/CVE-2026-48220 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-48220 · Security Note
• https://github.com/openises/tickets/releases/tag/v3.44.2 · Note
• https://vulncheck.com/advisories/open-ises-tickets-reflected-xss-via-ics205-php-frm-add-str-parameter · Note